Induction chemotherapy in technically unresectable locally advanced oral cavity cancers: does it make a difference?

Area of Science:

• Oncology
• Head and Neck Surgery
• Medical Oncology

Background:

• Locally advanced and unresectable oral cavity cancers present a significant therapeutic challenge with poor prognoses.
• Induction chemotherapy is explored as a strategy to reduce tumor bulk, potentially enabling definitive surgical intervention.

Purpose of the Study:

• To evaluate the efficacy of induction chemotherapy in converting technically unresectable oral cavity cancers into operable disease.
• To analyze the impact of neoadjuvant chemotherapy (NACT) on treatment outcomes, including resectability and overall survival.

Main Methods:

• Retrospective analysis of 123 patients with locally advanced oral cavity cancers treated between June 2009 and December 2010.
• Data collected from a prospectively filled database included patient demographics, chemotherapy regimens (two-drug vs. three-drug), toxicity, response rates, and survival outcomes.
• Statistical analysis was performed using SPSS version 16.

Main Results:

• Induction chemotherapy rendered approximately 40% of initially unresectable oral cavity cancers operable.
• A higher resectability rate (68%) was observed with a three-drug regimen compared to a two-drug regimen (52%).
• Patients achieving clinical response and undergoing surgery had significantly improved median overall survival (not reached) compared to those treated non-surgically (8 months).

Conclusions:

• Induction chemotherapy is an effective strategy for improving resectability in locally advanced, unresectable oral cavity cancers.
• The use of induction chemotherapy is associated with a significant survival benefit for patients with oral cavity cancer.
• Further research may explore optimal chemotherapy regimens and patient selection for induction therapy.